How to make paper, how to make paper

How paper is made How paper is made.

The process of making paper.

1. First of all, the raw materials, that is, trees and reeds, are used, and the collection of raw materials is the most basic and important step.

2. Crush the big tree and reed into pieces, put them in a high-pressure container, and add sodium hydroxide.

and sodium sulfide to put lignin.

Separate from the fragments so that the pulp can be obtained.

3. Rinse the pulp with potion to remove the impurities in the pulp.

4. Bleach the pulp and add a potion to the pulp.

5. Drain the water with a special net, and put it on the felt to absorb the water after draining.

6. Dry the water thoroughly at high temperature and compact the paper at the same time.

7. Use a calender to do calendering treatment to make a large roll of paper.

8. The rolled paper is very large, so it should be cut according to the size required by various industries, and it can be sold on the market.

The method of making paper Handmade paper, also known as "soil method" papermaking, refers to the manual papermaking method that has been passed down from generation to generation by the invention of papermaking without machinery or only with very simple machinery.

The operating tools are as follows: wood, cutter, digester, paper machine.

The paper is made as follows:

1. There are many raw materials, and wood is used as raw material here. The wood used to make paper is put into a drum and the bark is removed.

2. Put the peeled wood into the cutting machine.

3. Send the wood chips to the digester.

4. Then use a large amount of water to wash the pulp, and remove the coarse flakes, knots, stones and sand in the pulp through screening and purification.

5. According to the requirements of the paper grade, the pulp is bleached to the required whiteness with bleach, and then the pulping equipment is used for pulping. The pulp is fed into the papermaking banquet machine. In this step, some of the water is removed from the pulp and turned into a wet pulp strip in which the fibers are gently pressed together by the drum.

6. The pulp moves along the belt, then goes to the water, and becomes tighter.

7. A roller with a smooth surface irons the surface of the paper.

8. Put the paper into the machine and cut it to the standard size of the dry shed. <>

The production process of paper includes: 1. The use of forest trees as raw materials, felling is indispensable, and it is processed into preparation materials. 2. Distill the prepared materials into slurry, wash them with water, and then carry out slag removal and screening.

3. The screened wood pulp is chemically bleached into white, beaten, infiltrated, and multiplied, and then pressed and dried. 4. Finally, calender it into a roll, cut and wrap it.

1. The use of forest trees as raw materials, felling is indispensable, and it is processed into preparation materials.

2. Distill the prepared materials into slurry, wash them with water, and then carry out slag removal and fine screening.

3. The screened wood pulp is chemically bleached into white, and the pulp is complicated and then destroyed, and then pressed and dried.

4. Finally, calender it into a roll, cut and wrap it.

Principles of papermaking:

1. Papermaking production is divided into two basic processes: pulp and paper. Pulping is to use mechanical methods, chemical methods or a combination of the two methods to dissociate plant fiber raw materials into colored pulp or bleached pulp. Papermaking is the combination of pulp fibers suspended in water through various processes to meet various requirements.

2. Fiber is the most basic substance that constitutes general paper, and this fiber must be plant fiber. Some flakes made of animal fibers such as wool and silk cannot be called "paper" although they have various functions and characteristics of paper; Finished paper made from chemical polymer fibers can only be called synthetic paper.

3. Another element of papermaking is fiber pulping and percussion, using a stirring knife and high-horsepower machinery to make the plant fibers bifurcate and break, and then copied into paper with greater binding force, unlike smooth filamentous fibers that are easy to slip off; In addition, the debris and paste produced after pulping have the function of filling pores and bonding paper when making paper.

The process of making paper is as follows:Material: Wood.

1. The use of forest trees as raw materials, felling is indispensable, and it is processed into preparation materials.

2. Distill and dissolve the prepared materials into slurry, wash them with water, and then carry out fine screening for slag removal.

3. The screened wood pulp is chemically bleached into white, the pulp is mixed, and then pressed and dried.

4. Finally, calender it into a roll, cut and wrap it.

The invention of paperPaper was invented as early as the Western Han Dynasty, when the quality of paper was poor; It could not be used for writing, and it was only in the late Western Han Dynasty that the quality of paper improved. It is on the basis of this papermaking technology that Cai Lun has improved the raw materials and processes to produce high-quality paper, especially Cai Lun has expanded the raw materials for papermaking, and has provided conditions for the widespread use of various plant fibers to make paper in the future.

During the Wei, Jin, Southern and Northern Dynasties, paper was widely spread, generally used by people, papermaking technology was further improved, and the papermaking area was gradually spread to Yue, Shu, Shao, Yang and Anhui, Jiangxi and other places before the Jin Dynasty.

1. The principle of papermaking is mainly to complete the production by connecting fibers. Most of the fibre** is found in trees, but it can also be obtained from flax, cotton and other plant-based raw materials.

2. First of all, all the fibers are torn, re-refined and pure, mixed with a large amount of hot water to make pulp, these diluted pulp are then distributed to the screen screen, the water is discharged, and then through a high degree of mechanization and fine air control operation to the pulp embedded in the texture, watermark or color, after a series of processes, the fastest after the formation of a layer of various fibers perfectly intertwined film, and the lead film is paper.

3. Papermaking is one of the four great inventions of ancient China, more than 1800 years ago in the Eastern Han Dynasty, Cai Lun improved the papermaking method after a long period of experiments, Cai Lun used bark, rags, broken fishing nets and other plant fibers as raw materials, added water to cook, pounded into pulp, and then evenly spread on the fine curtain to dry, resulting in a thin paper, this paper is easy to write, and cheap, welcomed by people.

Let's take a look at the specific process of papermaking:

First, all the fibers are torn, re-refined, and mixed with plenty of hot water to make pulp.

The diluted pulp is then dispensed onto a sieve screen, where the water is drained and the texture, watermark or color is embedded into the pulp in a highly mechanized and precisely controlled operation.

After a series of processes, a film of various fibers is formed that is perfectly intertwined, and this film is paper.

Every process of papermaking, including fiber selection, maintaining the balance of fiber properties, color, thickness, etc., is premised on the properties presented by the final paper.

Drawing on state-of-the-art technology and centuries of inspiration from the art of paper, today's paper mills and studios are able to convoke an endless range of blends to meet the needs of creative business brochures and creative stationery.